Universal:

Audio Spectrum is a real-time FFT spectrum analyzer. It provides you with a visual representation of what you’re hearing, and can be used to measure the response times of audio equipment or analyze various sounds. The app includes three sampling rates to choose from, the ability to zoom and pan charts, and the ability to export and share charts. External microphones are also supported and are highly recommended for better results.

Audio Spectrum is available for free for a limited time. It has a 4-star rating with a total of 5 ratings.

After choosing a scene, cork board cutouts will begin to appear. Your child must drag and drop the pieces into place to fill each cutout. Once complete, the scene will become animated and they can tap on different items and characters to see what happens. The game includes 11 scenes to enjoy, and a new baby play time mode.

Animal Puzzles for Kids with Skills: The Best Activity Preschool Shape Games for Toddlers, Boys and Girls is available for free for a limited time. It has a 4-star rating with a total of 44 ratings.

BlackCam – Black&White Camera ($1.99 → Free, 11.7 MB): Take stunning black and white photos with BlackCam. Every iPhoneographer should have a black and white camera in their collection.

BlackCam does one thing and does it well. It provides you with dozens of lens filters to choose from, all of which are shown live on your feed. You can also add simulated grain and vignette, and adjust the contrast, brightness, and exposure at will. The app outputs at full resolution, providing you with the best possible results.

BlackCam – Black&White Camera is available for free for a limited time. It has a 4.5-star rating with a total of 55 ratings.

Peter Potato ($1.99 → Free, 76.6 MB): Help Peter Potato build up his confidence in this story-based adventure. Fans of mini-games will get a kick out of this quirky tale.

Peter Potato’s adventure will test your speed, skill, memory, rhythm, and intellect through 70 fast-paced mini-games. The charming and quirky story sets up each mini-game. The dialogue is not only amusing, it’s also loaded with more than 150 vegetable facts. Along the way you’ll be able to unlock new characters, clothes, and accessories.

Peter Potato is available for free for a limited time. It has a 4.5-star rating with a total of 13 ratings.

The beauty of Maze Zen is in its simplicity. Just tilt to roll the ball through circular mazes in order to reach the center. If you want, you can compete against the speed records, but it’s not a requirement. After completing each maze you’ll receive an inspirational quote. You’re able to match the color of the mazes to your mood with a two-finger pinch. The game is also a blast to play on Apple Watch.

Maze Zen is available for free for a limited time. It has a 3-star rating with a total of 7 ratings.

Henry’s granddad has been accused of being a pirate and has been condemned to death as a result. It’s up to you to help Henry collect the tools that will save his granddad while uncovering all sorts of secrets buried in exotic locations. Each scene has a variety of objects to discover, and the faster you work, the more points you’ll score. Just try to avoid mindlessly tapping the screen, as it will freeze up and cost you valuable time. Bandits will also enter the scene at random, and you must tap on them to fire and protect yourself to earn extra hints.

Golden Trails 2: Hidden Object Adventure (Premium) is available for free for a limited time. It has a 4.5-star rating with a total of 1270 ratings.

That concludes today’s issue of Apps Gone Free. If you like staying on top of these daily deals, don’t forget to check out our free AppsGoneFree app. It provides all the deals each day, and even an archive of past deals that are still active.

Developers:

If you are a developer who would like to get your app included in our “Apps Gone Free” daily lists, here’s our basic set of rules:

It must have at least a three-star average rating at the time it goes free.

The app must not have been free numerous times (3+) over the last six months.

The free version of your app must not include ads.

To submit an app, simply send a request to [email protected] with the subject “Apps Gone Free.” Please include the name of the app, a link to it in the App Store, when and for how long you intend to offer the app for free, and anything else you would like to share. We will take it from there.